A photo of my youngest son rather miserable at being dressed in a vampire costume. You can't really see it in this photo but the horns, teeth... is drawn on a transparency which is over the photo. If you push and pull on the tag with the dots the transparency slides in and out of the LO.
I only just noticed the circle with the dots on has flipped over, it should be a monsters head stuck on the scary swoosh, grrrr, will rephotograph if I get a chance.
This was done in a fantastic class by Nicola Kerridge.